WO2002084834A1 - A method and a device for removing ice and snow from a powerline - Google Patents
A method and a device for removing ice and snow from a powerline Download PDFInfo
- Publication number
- WO2002084834A1 WO2002084834A1 PCT/SE2002/000716 SE0200716W WO02084834A1 WO 2002084834 A1 WO2002084834 A1 WO 2002084834A1 SE 0200716 W SE0200716 W SE 0200716W WO 02084834 A1 WO02084834 A1 WO 02084834A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cables
- helicopter
- lines
- aircraft
- result
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
Definitions
- the present invention relates to a method for removing ice and snow from a power line construction of the kind defined in the preamble of the accompanying method Claim.
- the invention also relates to a corresponding arrangement of the kind defined in the preamble of the accompanying apparatus Claim.
- an object of the present invention is to provide a technique which enables snow and ice to be removed effectively from a power line construction with the aid of an aircraft.
- a concrete example of the invention requires the use of a helicopter that flies along and above the power line construction, relatively close thereto.
- the helicopter shall carry a generally horizontal support beam which extends transversely to the longitudinal direction of the helicopter.
- Hanging from the support beam are long flexible cables that are spaced evenly along the beam at selected intervals.
- the support beam and cables, or respective cable magazines, are preferably secured by detachable fasteners, for example screws, such that the position of the centre of gravity of the helicopter will not be changed to any appreciable extent.
- the helicopter is intended to fly above the power lines at a height at which the cables will extend down between the lines and lie on respective sides thereof. Because the cables are flexible and are subjected to lateral oscillatory movement relative to the individual lines of the power line construction as the helicopter flies along said lines, the cables are able to act mechanically against the power lines such as to break-up the coatings of snow and ice, which is then able to fall down onto the ground below.
- the cables swing partly in the direction in which the helicopter travels, due partly to the slipstream and the effect of the wind, and partly to the effect of the downwardly acting airstream from the main rotor of the helicopter.
- the individual lines of the power line construction are thus subjected to a powerful airstream, primarily from the main rotor of the helicopter, and also to mechanical treatment from the cables, wherein the rotor airstream and other airstreams ensure that the cables will be swung laterally even when the helicopter flies along the power line construction.
- the cables are provided with weakenings or fracture points that have a well-defined and limited breaking strength. This reduces the danger of a helicopter crashing as a result of a suspended cable-part fastening to a power line.
- the helicopter and the cables may, of course, be steered to influence trees situated close to the power lane, if so desired.
- the cables may be supported from the beam through the medium of a cable magazine that is designed to enable adjustments to be made to the length of cable hanging from the beam.
- the cable magazine may be operable in a manner to enable an adjustment to be made to the length of the individual cable hanging from the beam.
- the cable may be produced with a predetermined tensile strength that ensures that the tensile force in the cable prior to its fracture will lie beneath a predetermined value, with the intention of reducing the risk of the arrangement breaking-up should one or more cables fasten, or to prevent the helicopter from crashing as a result of one or more cables fastening in the power line construction or in a tree.
- the support beam and the cable magazine are preferably positioned at a level above the support surface of the aircraft landing gear.
- Fig. 1 illustrates a helicopter that carries a power line working arrangement.
- Fig. 2 is a view taken on the line II-II in Fig. 1.
- Fig. 3 is a sectioned view taken on the line III-III in Fig. 2.
- Fig. 4 is a longitudinal sectioned view of a cable.
- Figs. 1 and 2 illustrate a power line construction 1 situated in a power lane 2 that passes through woodland, e.g. a forest.
- the power line construction 1 includes posts 11, which cany a number of overhead lines 12.
- a helicopter 4 is shown to carry above its landing gear 5 a crossbeam 6, which extends generally horizontal and transversal to the longitudinal axis of the helicopter 4.
- the crossbeam 6 carries a number of cable magazines 7 in mutually spaced relationship along the beam 6.
- Each magazine 7 includes a flexible cable 8, which hangs down from its respective magazine.
- the magazine 7 is adapted to enable the length of cable 8 hanging therefrom to be adjusted.
- the helicopter may conveniently take-off and land with the cables 8 essentially fully drawn into their respective magazines 7.
- the cable ends will preferably project out from respective magazines to some short extent, for instance through a distance of 0.5 m.
- the magazines 7 are caused to feed out an appropriate length of respective cables 8. This enables the helicopter pilot to fly above and along the power line construction 1 and to fly the helicopter at a height at which cables 8 will hang down between and outwardly of respective overhead lines 12.
- the lines 12 are subjected to a powerful, pulsating and downwardly acting airstream from the main rotor 41 of the helicopter, such as to free the lines 12 from snow, ice and water and possibly also to cause the lines 12 to swing.
- the airstream from the main rotor 41 will, of course, also affect the cables 8 and cause said cables to swing.
- the cables 8 will strike against the lines 12 as the helicopter flies along the power line construction 1, and will also slide against the cables so as to contribute to the removal of snow, ice and water from the lines 12, and also from the posts 11 and the means 13 by which the lines 12 are suspended from the posts 11.
- the helicopter carries a device 90, which may have the form of a compressed air-cannon and/or an ultrasound cannot and/or a laser unit which, e.g., may be directed downwards so as to remove snow, ice and water from, e.g., the power lines when activated.
- a device 90 which may have the form of a compressed air-cannon and/or an ultrasound cannot and/or a laser unit which, e.g., may be directed downwards so as to remove snow, ice and water from, e.g., the power lines when activated.
- Fig. 3 illustrates the carrier beam 6 and the magazine 7 carrying the cable 8 in larger scale.
- tire magazine 7 may include a cable drum 71 which is powered by a motor 72 for taking up and paying out the cable 8, wherein the motor may be remotely controlled, e.g., from the interior of the helicopter 4.
- Each magazine 7 is preferably connected to the carrier beam via an explosive fuse which when activated (e.g. by remote control from the pilot, or automatically when its load exceeds a given value) separates the whole of the magazine from said carrier beam.
- the cable 8 is given a predetermined breaking strength, so that it will be pulled off if the tensile force exceeds a chosen value.
- the cable 8 may comprise a series of cable sections that are mutually connected via weakenings 82 or the like that define fracture points in respect of the cable 8.
- the weakenings of fracture points 82 may be graded so as to provide an increasingly lower breaking limit towards the bottom end of the cable 8.
- the cable 8 and its sections 81 will preferably be comprised of a non-conductive material.
- the flexibility or suppleness of the cables 8 will preferably be chosen so that the cable 8 will have a low tendency to wrap itself around a line carrier 13, for instance.
- the cables 8 may conveniently have a relatively high mass and may, for instance, be comprised of a hose that is filled with sand and closed to form a cable section 81, wherewith said closure may include a fracture means 82 in the form of a weakening in the hose-closing weld.
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02720735A EP1378041A1 (en) | 2001-04-11 | 2002-04-11 | A method and a device for removing ice and snow from a powerline |
NO20034494A NO20034494L (en) | 2001-04-11 | 2003-10-08 | Method and apparatus for removing ice and snow from power lines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0101292A SE0101292L (en) | 2001-04-11 | 2001-04-11 | Method and apparatus for removing ice and snow from a power line |
SE0101292-1 | 2001-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002084834A1 true WO2002084834A1 (en) | 2002-10-24 |
Family
ID=20283757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2002/000716 WO2002084834A1 (en) | 2001-04-11 | 2002-04-11 | A method and a device for removing ice and snow from a powerline |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1378041A1 (en) |
NO (1) | NO20034494L (en) |
SE (1) | SE0101292L (en) |
WO (1) | WO2002084834A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102611063A (en) * | 2012-01-13 | 2012-07-25 | 华北电力大学 | Ultrasonic deicing device for high-voltage power transmission lines and deicing method of ultrasonic deicing device |
CN103986103A (en) * | 2014-05-16 | 2014-08-13 | 侯荣华 | New high tension line ice and snow removal system |
CN105305355A (en) * | 2015-11-22 | 2016-02-03 | 无锡同春新能源科技有限公司 | De-icing unmanned machine equipped with thermal radiation device |
CN106025983A (en) * | 2016-06-23 | 2016-10-12 | 陈晨 | Overhead wire cable deicing unmanned plane |
US9468951B2 (en) * | 2014-08-20 | 2016-10-18 | Elwha Llc | Surface cleaning unmanned aerial vehicle |
CN106099816A (en) * | 2016-06-23 | 2016-11-09 | 陈晨 | A kind of suspension type trolley wire electrical cable intelligent deicing robot |
US9979174B2 (en) | 2012-09-20 | 2018-05-22 | Global Boiler Works Oy | Method and device for removing material from a power line wire |
CN108390313A (en) * | 2018-04-28 | 2018-08-10 | 广东电网有限责任公司 | A kind of overhead transmission line, which floats, hangs object cleaning plant |
CN108448522A (en) * | 2018-04-29 | 2018-08-24 | 张景熙 | A kind of working at height cable deicing unmanned plane |
CN109167321A (en) * | 2018-10-24 | 2019-01-08 | 中国石油大学(华东) | A kind of novel deicing unmanned plane |
CN111092403A (en) * | 2020-02-16 | 2020-05-01 | 郑鹏艺 | Aerial working cable deicing unmanned aerial vehicle |
CN114498518A (en) * | 2022-01-28 | 2022-05-13 | 国网河南省电力公司洛阳供电公司 | Method for removing ice coating on power transmission and distribution line |
CN116345381A (en) * | 2023-05-24 | 2023-06-27 | 国网山西省电力公司晋城供电公司 | Rope wave resonance deicing device for icing of overhead transmission line |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106025981B (en) * | 2016-06-23 | 2017-10-24 | 绍兴俪泰纺织科技有限公司 | A kind of electric power transmission line deicing aircraft |
CN106877238A (en) * | 2017-03-18 | 2017-06-20 | 淄博萃智工业设计咨询有限公司 | A kind of power circuit Bird's Nest sweep-out method |
CN108334113A (en) * | 2018-04-19 | 2018-07-27 | 北京邮电大学 | Unmanned plane deicing system and method |
CN110729691A (en) * | 2019-11-07 | 2020-01-24 | 重庆大学 | Hot water deicing system and method for insulator in ultrahigh voltage transmission line |
CN110838701B (en) * | 2019-11-08 | 2020-09-11 | 南京聚联输变电安装有限责任公司 | Intelligent deicing device for power transmission and transformation line |
CN111545502A (en) * | 2020-04-23 | 2020-08-18 | 曹树梁 | Dust removing device for desert sunlight absorption surface unmanned helicopter |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3916732A (en) * | 1974-12-11 | 1975-11-04 | Russell E Caldwell | Ice removing tool |
US4478312A (en) * | 1982-09-30 | 1984-10-23 | Kurtgis Michael P | System and portable cage for servicing power transmission lines |
US4637575A (en) * | 1984-10-04 | 1987-01-20 | Yenzer Scott H | Helicopter airmobile work platform for working on power lines and tower structures |
US5417304A (en) * | 1992-05-15 | 1995-05-23 | Kurtgis; Michael P. | Suspending loads from a helicopter |
US5494132A (en) * | 1994-02-14 | 1996-02-27 | Hansen; Harry L. | Side-loading suspension frame and ladder assembly for maintenance of energized power transmission lines |
-
2001
- 2001-04-11 SE SE0101292A patent/SE0101292L/en not_active IP Right Cessation
-
2002
- 2002-04-11 WO PCT/SE2002/000716 patent/WO2002084834A1/en not_active Application Discontinuation
- 2002-04-11 EP EP02720735A patent/EP1378041A1/en not_active Withdrawn
-
2003
- 2003-10-08 NO NO20034494A patent/NO20034494L/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3916732A (en) * | 1974-12-11 | 1975-11-04 | Russell E Caldwell | Ice removing tool |
US4478312A (en) * | 1982-09-30 | 1984-10-23 | Kurtgis Michael P | System and portable cage for servicing power transmission lines |
US4637575A (en) * | 1984-10-04 | 1987-01-20 | Yenzer Scott H | Helicopter airmobile work platform for working on power lines and tower structures |
US5417304A (en) * | 1992-05-15 | 1995-05-23 | Kurtgis; Michael P. | Suspending loads from a helicopter |
US5494132A (en) * | 1994-02-14 | 1996-02-27 | Hansen; Harry L. | Side-loading suspension frame and ladder assembly for maintenance of energized power transmission lines |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102611063A (en) * | 2012-01-13 | 2012-07-25 | 华北电力大学 | Ultrasonic deicing device for high-voltage power transmission lines and deicing method of ultrasonic deicing device |
US9979174B2 (en) | 2012-09-20 | 2018-05-22 | Global Boiler Works Oy | Method and device for removing material from a power line wire |
CN103986103A (en) * | 2014-05-16 | 2014-08-13 | 侯荣华 | New high tension line ice and snow removal system |
CN105932629A (en) * | 2014-05-16 | 2016-09-07 | 侯荣华 | Snow and ice removal system for high-voltage line |
US9993852B2 (en) | 2014-08-20 | 2018-06-12 | Elwha Llc | Surface cleaning unmanned aerial vehicle |
US9468951B2 (en) * | 2014-08-20 | 2016-10-18 | Elwha Llc | Surface cleaning unmanned aerial vehicle |
CN106794900A (en) * | 2014-08-20 | 2017-05-31 | 埃尔瓦有限公司 | The unmanned aviation carrier of surface cleaning |
EP3183170A4 (en) * | 2014-08-20 | 2018-05-09 | Elwha, Llc | Surface cleaning unmanned aerial vehicle |
CN105305355A (en) * | 2015-11-22 | 2016-02-03 | 无锡同春新能源科技有限公司 | De-icing unmanned machine equipped with thermal radiation device |
CN106099816A (en) * | 2016-06-23 | 2016-11-09 | 陈晨 | A kind of suspension type trolley wire electrical cable intelligent deicing robot |
CN106025983A (en) * | 2016-06-23 | 2016-10-12 | 陈晨 | Overhead wire cable deicing unmanned plane |
CN108390313A (en) * | 2018-04-28 | 2018-08-10 | 广东电网有限责任公司 | A kind of overhead transmission line, which floats, hangs object cleaning plant |
CN108448522A (en) * | 2018-04-29 | 2018-08-24 | 张景熙 | A kind of working at height cable deicing unmanned plane |
CN109167321A (en) * | 2018-10-24 | 2019-01-08 | 中国石油大学(华东) | A kind of novel deicing unmanned plane |
CN111092403A (en) * | 2020-02-16 | 2020-05-01 | 郑鹏艺 | Aerial working cable deicing unmanned aerial vehicle |
CN111092403B (en) * | 2020-02-16 | 2020-12-15 | 台州市阿里菜鸟电子商务有限公司 | Aerial working cable deicing unmanned aerial vehicle |
CN114498518A (en) * | 2022-01-28 | 2022-05-13 | 国网河南省电力公司洛阳供电公司 | Method for removing ice coating on power transmission and distribution line |
CN114498518B (en) * | 2022-01-28 | 2023-05-26 | 国网河南省电力公司洛阳供电公司 | Ice coating removal method for power transmission and distribution line |
CN116345381A (en) * | 2023-05-24 | 2023-06-27 | 国网山西省电力公司晋城供电公司 | Rope wave resonance deicing device for icing of overhead transmission line |
CN116345381B (en) * | 2023-05-24 | 2023-09-05 | 国网山西省电力公司晋城供电公司 | Rope wave resonance deicing device for icing of overhead transmission line |
Also Published As
Publication number | Publication date |
---|---|
SE518439C2 (en) | 2002-10-08 |
EP1378041A1 (en) | 2004-01-07 |
NO20034494D0 (en) | 2003-10-08 |
SE0101292D0 (en) | 2001-04-11 |
NO20034494L (en) | 2003-10-08 |
SE0101292L (en) | 2002-10-08 |
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